This energetic requalification has been realized in a country house where it was present a deficient convective heating system. The existing radiators have been replaced with the R Panels®, maintaining the same hydraulic plant. A geothermal heat pump as energy source has been chosen; it feeds both the R Panels® and the fun-coils necessary for the dehumidification in the cooling phase. The system has consequently been improved from a only-heat plant to a heating-cooling radiant system. The reduction of the energy bill has been of about the 65%!